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An improved Particle Swarm Optimization (IPSO) algorithm is proposed in this paper. In the algorithm, a premature estimate mechanism is introduced to judge whether the particles accumulate in a small region and tell the probability whether the swarm is trapped in a local optimum. If the estimate criterion is satisfied, the chaotic mutation operation, which makes use of the chaos search strategy and...
The conceptual optimal design of a 300 MJ high temperature superconducting (HTS) magnet using Bi2223/Ag tapes has been conducted. In order to reduce the stray field of the HTS magnet, a toroidal configuration was proposed. The proposed configuration was optimized by using an improved particle swarm optimization method under a lot of constraints such as the storage energy, the volume of the superconductor,...
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